package NGUYENNGOCMINH.STRUCTURE_PROGRAMMING;

import java.util.Scanner;

public class EX03 {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		String temp;
		do {
		System.out.println("Nhập số kg");
		Scanner sc = new Scanner(System.in);
		temp = sc.nextLine();
		if(temp.isEmpty() || Double.parseDouble(temp) < 0){
			System.out.println("Óc cờ hó");
		}
			
			
		}while(temp.isEmpty()  || Double.parseDouble(temp) < 0);
		double kg = Double.parseDouble(temp);
		double pound = kg * 2.2;
		System.out.println( kg + "kilogram = " + pound + "pound");
	}

}
